Frequently Asked Questions - Sloped roofs

Find the answers to frequently asked questions about maintenance, repairs, components of a pitched roof, and Les Couvreurs Duro-Toit. This information will give you a better understanding about the entire sloped-roof system. You should know that each case is specific to the type of roof. The expertise of a roofer may be necessary for further evaluation. Contact us for more information.

Flat Roof Commercial
  • General Questions
  • Inspection
  • Insulation
  • Ventilation
  • Covering
  • Water Infiltration
  • Snow Removal
  • Workforce
  • How long has the company existed?
    The company was founded in 2006. Since its inception, Les Couvreurs Duro-Toit have experienced explosive growth due to the quality of its work and its approach to consultancy. Today, our team has more than 35 members dedicated to the field. This success is due to the fact that we take each project to heart, giving it all of our attention.
  • What certifications to Les Couvreurs Duro-Toit hold?
    The company and its employees meet the highest industry standards. Its certifications include: CAA Habitation, the APCHQ Prevention Mutual, RBQ, CCQ, and the ACQ. We also hold the certifications of different manufacturers, including SOPREMA, Maximum Ventilation, and BP. The company is also a member of the Office of Consumer Protection. In addition, all employees have the required skills cards. These certifications ensure our clients of the best coverage that the industry offers.
  • What certifications to Les Couvreurs Duro-Toit hold?
    All members of our team work together to optimize every aspect of corporate management. The results of our work and the constant customer demand speak to our continual success. Our business development and sound internal management place us among the leading companies in the field of construction. CAA Habitation is one of many organizations that recognizes the value of Les Couvreurs Duro-Toit.
  • What are the signs of a bad insulation?
    When the attic is poorly insulated, you notice the formation of ice on the roof and icicles around the edges. The cost of electricity is higher for air conditioning and for heating. In addition, the temperature seems difficult to control and sometimes causes discomfort inside your home.
  • How to calculate the R-value of the insulation?
    The insulation needs vary depending on the building system and the type of roof. You are advised to consult the description sheet to know the R-value of the insulation. In general, the higher the R-value, the greater the insulation.
  • What are the requirements for holding a LEED Certification?
    The evaluation system Leadership in Energy and Environmental Design (LEED) promotes the construction of green buildings. For this accreditation, it is necessary to meet several criteria for the universal components, construction, type of roof, and energy savings. Please refer to the certification requirements: www.ecohabitation.com
  • Why ventilate the attic?
    Ventilation helps to preserve the full integrity of the building and roof covering. The risks of excessive moisture and overheating in the attic are then reduced. By the same token, it ensures the perfect comfort level inside the home. Speak with an expert to get recommendations tailored to your type of roof.
  • Why temper the attic?
    Ventilation must keep the attic as close as possible to the outside temperature. Otherwise, the heat losses will melt the ice and create water seepage and will spread into the building. Damage can be serious if it is not addressed by roofing specialists.
  • Why do manufacturers require that the attic is ventilated?
    Manufacturers' warranties do not apply if ventilation is inadequate. The difference between the outside and attic temperatures causes overheating which prematurely ages the covering. So ventilation is a criterion to meet for protection in case of problems.
  • Does the outer covering have a direct connection to the waterproofing of the roof?
    Yes, because the flashing sealings are under the covering and under the shingles. If they are inadequate, you need to remove the entire covering to replace them. Furthermore, the wall covering is an integral part of the building waterproofing. So it must be in good condition to maintain water resistance and protect the integrity of the building.
  • What should we know about roofing?
    There are different categories of sheathing. Asphalt shingles are popular because they offer good value for the cost. Depending on the roof system, it may be preferable to select a specific covering to overcome problems. It is advisable to talk to a technical consultant regarding covering alternatives.
  • What are the different types of asphalt shingles?
    A few years ago, three-tab shingles were the most popular on the market. Today, laminated fiberglass shingles, which are more resistant, are popular. Architectural shingles, with their unique designs, are available for all types of pitched roofs.
  • How does water seepage occur?
    The main cause of water infiltration is the presence of ice under the covering. During a thaw, the ice melts and the water leaks into the attic and then the interior of the house. Infiltration may also come from the lining wear, missing shingles, poor insulation, poor structure, etc.
  • What are the main solutions to water infiltration?
    Depending on the situation, our roofers can locally replace the affected sections. If the coating does not need to be changed in its entirety, it is possible to change it locally. It is also important to properly seal openings by changing the rubber sealants or coverings with products adapted to your type of roof. The snow and ice may need to be removed to prevent the increase of ice on the roof.
  • When should you inspect the roof system?
    It is recommended to check the attic every three months and after a heavy rainfall or high winds. As soon as you spot an anomaly, please see our roofers for a solution adapted to your type of roof.
  • What equipment is needed to clear the snow from a sloping roof?
    According to the type of pitched roof, it is recommended to use the sleigh-shovels, standard shovels, ice picks, and chain saws adapted to the specific needs of de-icing. Personal protective equipment, such as lifelines and safety harnesses, is required. If necessary, we can use a snow blower to release the snow.
  • Why is it necessary to shovel the roof?
    When ice forms, dams are created and extend over the roof. De-icing becomes necessary to prevent water infiltration or the weakening of the structure. Ideally, when snow and ice exceed 12 inches, it should be cleared.
  • Why entrust snow removal for roofers?
    A skilled workforce knows how to remove snow and ice from all types of roofs without damaging the cladding. The quality of work is superior and you are protected if a problem occurs.
  • What are the qualifications of Les Couvreurs Duro-Toit?
    Our team is highly qualified to carry out repair work and install new roofs. Each member holds a skills card in addition to following a continuous training program on new methods and manufacturers' products. Thus we provide our customers with a highly skilled workforce for sloped roofs.
  • How to ensure safety?
    Health and safety is a team affair. From the moment of employment, every employee is committed to implementing the prevention program and all safe work practices. Each week, the Security Officer trains employees on topics of prevention in the workplace. Whatever type of roof, our experts will work in accordance with the standards.
  • What jobs does our team bring together?
    Les Couvreurs Duro-Toit is composed of a number of trades, specific to each type of roof: experts in laying asphalt shingles, elastomeric membrane, metal sheeting (tinsmiths), and exterior siding. We also have technical consultants, servicemen, estimators, a Security Manager, and office staff to coordinate customer service, construction sites, and billing.